On 22 July 2010 11:56, Gilles Chanteperdrix <
[email protected]> wrote:

> Stephen Bryant wrote:
> > On 22 July 2010 08:54, Gilles Chanteperdrix <
> > [email protected]> wrote:
> >
> >> Stephen Bryant wrote:
> >>> On 21 July 2010 14:06, Gilles Chanteperdrix
> >>> <[email protected]
> >>> <mailto:[email protected]>> wrote:
> >>>
> >>>     Stephen Bryant wrote:
> >>>     > I've had a look at dmesg, but cannot find any references to SMI -
> >> what
> >>>     > should I be looking for?
> >>>
> >>>     What is described in the TROUBLESHOOTING file.
> >>>
> >>>
> >>> I have tried disabling the SMI workaround, ensuring that SMI detection
> >>> is not disabled, and logging the kernel output (setting the kernel log
> >>> level to 8 in grub and sending the output to the serial port to be
> >>> picked up by another machine). The troubleshooting file states that I
> >>> should see "Xenomai: Intel chipset found and SMI workaround not
> >>> enabled, you may encounter high interrupt latencies." in this output,
> >>> however this does not occur - I am using an Intel Core 2 Duo but with
> >>> SMP disabled, if this has any relevance.
> >> The SMI detection/workaround is based on the chipset you have. If your
> >> chipset is an ICH10, Stefan posted a patch a few days ago. If it is
> >> another one, then please send us the result of lspci -vv on your target.
> >>
> >
> > It seems to be ICH8, so the result is attached,
>
> Please try with the following patch:
>
>
> --
>                                             Gilles.
>

With the patch applied and SMI Workaround not used I get the kernel message
as expected: "...SMI workaround not enabled...".

However, with the SMI Workaround enabled and Globally disabling SMI I get
the messages:
"Xenomai: SMI-enabled chipset found
Xenomai: SMI workaround failed!"

Steve
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